>Did you know? You can do the work of almost any kitchen tool just by using your mouth!
>Look! We'll prove it! Watch, I can prepare this whole dish with just my mouth! *disgusting mouth sounds follow*
I hope this is supposed to be a joke.
First of all, nobody cares that it's possible, secondly, nobody really doubts that something so pointless is possible, thirdly, nobody wants to eat anything that you "cooked with your mouth", no matter how "cool" and "interesting" you think it is, and finally, nobody even wants to see anyone do that, because it's just unsanitary (unless you are the only one eating the dish), messy, and inefficient.
Like, yeah, you can just bite an onion into bits instead of chopping it, or you could chew up a clove of garlic instead of crushing it, and you can mix like a half a cup of milk and eggs by swishing them in your mouth, but you just end up getting a ton of saliva all over everything, cross-contaminating all your ingredients, and ending up with a mouth that tastes like you just licked the entire deli prep table right before closing time.